Home / 3,318.59-4,977.90-1,581.95

Finding the Fourth Proportional to 3,318.59, 4,977.90 and 1,581.95

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Solution

The fourth proportional to 3,318.59, 4,977.90 and 1,581.95 is: 2,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.59 : 4,977.90 = 1,581.95 : x
  2. Step 2: Convert to fraction form
    3,318.59/4,977.90 = 1,581.95/x
  3. Step 3: Cross multiply
    3,318.59x = 4,977.90 × 1,581.95
  4. Step 4: Simplify right side
    3,318.59x = 7,874,764.02
  5. Step 5: Solve for x
    x = 7,874,764.02/3,318.59
  6. Step 6: Final answer
    x = 2,372.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.